STRAUSS Official Basketball Size 7 | Ideal for Kids & Adults | Professional Match Ball for Indoor & Outdoor Games & Training | for Basketball Enthusiasts and Athletes | Suitable for All Surfaces Strauss Basketball comes with a highly durable covering which is resistant to abrasion and rough game play and Rubber bladder to prevent loss of pressure & keeping the ball inflated for longer. Ultra-Durability: The basketball is a very long-lasting equipment owing to its ultra durable covering which provides superior performance and External surface made from rubber provides a good grip & bounce. Wide Channel Design: The ball has a wide channel design on its covering which gives it a tenacious grip, owing to sufficient friction and minimal slippage Superior Grip: The covering has granular texture and wide channels that let you gain a superior grip. All weather resistance.Weight w/o Air-475,with air-520, circumference-29.5 inch.